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Dynamic aperture of the storage ring VEPP-2M in round beam mode

Koop I. A., Lysenko A. P., Nesterenko I. N., Shatunov Yu M., Valishev A. A.

This paper describes dynamic aperture limitation of VEPP-2M in round beam operation due to chromaticity correction sextupoles and a way of lattice optimization. First order canonical perturbation theory is used to estimate influence of sextupoles on dynamic aperture. The estimates are compared with tracking results.